Alpha-Numeric Sequence puzzles

Logical Reasoning Questions based on Alpha-Numeric Sequence puzzles can be tried upon in this question and answers. Attempt all of them to know if you understand it's basic concept.This section is very useful for those who are preparing for competitive exams such as Written test of Bank Exams, CAT Exams, Railway Exams, SSC, UPSC,Banking,Insurance, Defence and many more.

Q1.Directions : Study the following series of alphanumeric series combination and answer the question given below.If the position of 6 and 2 are interchanged and similarly the position of U and R are interchanged then how many symbols will be there each of which is either preceded or followed by a vowel?

Q2.Directions : Study the following series of alphanumeric series combination and answer the question given below.What should come in place of question mark on the basis of the above arrangement? (A) U G Q (B) 5 A B (C) I T #(D) ?

Q4.Directions : Study the following series of alphanumeric series combination and answer the question given below.Four of the following five are alike in a certain way on the basis of the above arrangement and hence form a group. Which one does not belong to that group?

Q5.Directions : Study the following series of alphanumeric series combination and answer the question given below.If order of the last eleven elements is reserved, which of the following will be seventh to the right of ninth from the left end?